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calculate-0-ch-cosx-x-2-1-dx-




Question Number 83008 by mathmax by abdo last updated on 26/Feb/20
calculate ∫_0 ^∞  ((ch(cosx))/(x^2  +1))dx
$${calculate}\:\int_{\mathrm{0}} ^{\infty} \:\frac{{ch}\left({cosx}\right)}{{x}^{\mathrm{2}} \:+\mathrm{1}}{dx} \\ $$

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